package com.fosun.spr.core.login;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;

public class RedisTokenManager implements TokenManager {

	
	
	
    private RedisTemplate redis;
    private final static long TOKEN_EXPIRES_HOUR = 1;

    @Autowired
    public void setRedis(RedisTemplate redis) {
        this.redis = redis;
        //泛型设置成Long后必须更改对应的序列化方案
        redis.setKeySerializer(new JdkSerializationRedisSerializer());
    }

    public TokenModel createToken(long userId) {
//        //使用uuid作为源token
//        String token = UUID.randomUUID().toString().replace("-", "");
//        TokenModel model = new TokenModel(userId, token);
//        //存储到redis并设置过期时间
//        redis.boundValueOps(userId).set(token, TOKEN_EXPIRES_HOUR, TimeUnit.HOURS);
//        return model;
    	return null;
    }

    public TokenModel getToken(String authentication) {
        if (authentication == null || authentication.length() == 0) {
            return null;
        }
        String[] param = authentication.split("_");
        if (param.length != 2) {
            return null;
        }
        //使用userId和源token简单拼接成的token，可以增加加密措施
        String userId = param[0];
        String token = param[1];
        return new TokenModel(userId, token); 
    }

    public boolean checkToken(TokenModel model) {
//        if (model == null) {
//            return false;
//        }
//        String token = redis.boundValueOps(model.getUserId()).get();  
//        if (token == null || !token.equals(model.getToken())) {
//            return false;
//        }
//        //如果验证成功，说明此用户进行了一次有效操作，延长token的过期时间
//        redis.boundValueOps(model.getUserId()).expire(TOKEN_EXPIRES_HOUR, TimeUnit.HOURS);
        return true;
    }

    public void deleteToken(long userId) {
        redis.delete(userId);
    }

}
